whitetaildreamer

Wow!!! the physics here I can admit are far beyond me. My 2 cents would be buy what feels most comfortable to you. See if you can shoulderyou gun orthe same gun at a gun dealer with both a 50 and a 40mm scope. I think it's most important what is right for you.It alsodepends on what you are scoping for. If it is for deer within 300 yards I don't think it will make much difference ifthe scopes are the same model from the same manufacturer. Over the years I've seen some guys buy the biggest and the best butwith out the time in the bush their harvests have been no better than the guy who spent 100's if not 1000'sless. I prefer the Nikon scopes but I'm no expert, just another hunter that has become comfortable with the equipment that I use.